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Wholesale Fully Isolated HART to RS485 MODBUS-RTU Converter SM101-W | China Suppliers & Factory Solutions Manufacturer, Manufacturers
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Wholesale Fully Isolated HART to RS485 MODBUS-RTU Converter SM101-W | China Suppliers & Factory Solutions Manufacturer, Manufacturers
Introducing the SM101-W series HART Smart Converter, a cutting-edge solution developed by leading China suppliers, utilizing advanced ARM microprocessor technology and high-performance HART protocol modem chips. Designed with a focus on industrial reliability and stability, this intelligent converter seamlessly integrates into your system, The SM101-W features a standard RS485 interface and gateway, allowing for transparent data transmission with intelligent HART protocol instruments. Additionally, it is capable of converting data to MODBUS RTU/MODBUS TCP protocols, ensuring real-time data transfer for your applications. As a trusted factory in the industry, we are committed to providing you with high-quality solutions that meet your data communication needs
The HART protocol uses the Bell202 Frequency Shift Keying (FSK) standard to superimpose a modulated digital signal on a 4 to 20 mA basis, allowing the HART protocol instrument to allow bidirectional data communication without interfering with the 4 to 20 mA analog signal. SM101 series intelligent converter is an intelligent converter which can modulate and demodulate digital signals and analog signals in both directions.
Key Product Features
Equipped with standard RS485 interface and gateway for flexible parameter configuration independent of HART bus speed.
Industrial universal module shell design, optimized for convenient installation and commissioning.
Supports standard MODBUS_RTU and MODBUS_TCP protocols for broad system compatibility.
Simultaneous connection of multiple HART protocol instruments with individual channel isolation.
Fast data update rates: 0.8 seconds per set; 3.2 seconds for a four-set configuration.
Installation versatility: Compatible with standard rail mounting or fixed installation methods.
Main Parameters
Power Supply
DC 12 ~ 24 V, ripple ≤ 200 mA, current 100 mA
Shell Dimensions
75 mm (L) × 80 mm (W) × 41 mm (H)
Operating Temperature
-20 ℃ ~ + 80 ℃
Relative Humidity
10% ~ 80%
Frequently Asked Questions
Q1: Which protocols are compatible with the SM101 series?
The converters fully support standard MODBUS_RTU and MODBUS_TCP protocols, ensuring seamless integration into modern industrial control networks.
Q2: How does it enhance the overall system communication speed?
By utilizing a dedicated RS485 interface and gateway, the converter processes data independently of the 1200 baud rate limitation of the HART bus, optimizing system response times.
Q3: Is it possible to connect multiple HART instruments simultaneously?
Yes. The device supports simultaneous connections, and each channel is isolated to ensure that the current output of one instrument does not interfere with others.
Q4: What is the expected data refresh interval?
The update cycle is approximately 0.8 seconds for a single instrument and scales to 3.2 seconds when four instruments are connected.
Q5: What are the installation requirements for the converter?
It is designed with an industrial module shell that supports both standard DIN rail installation and fixed mounting for maximum site flexibility.
Q6: What power input is required for operation?
The unit operates on a DC 12 to 24 V power supply with a working current of 100 mA and requires ripple to be maintained at or below 200 mA.
